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4 years ago

13

Explain what you think causes planets to have weaker or stronger gravity than Earth. Predict what gravity would be like on a pla

net with a mass equal to Earth’s but a diameter half the size of Earth’s.

1 answer:

Sati [7]4 years ago

5 0

The heavier a object the more gravity it pulls on the object .

You might be interested in

Polyatomic ions

Vitek1552 [10]

I believe the answer is A.

5 0

3 years ago

elena-s [515]

Answer:

What does ppm mean? This is an abbreviation for "parts per million" and it also can be expressed as milligrams per liter (mg/L). This measurement is the mass of a chemical or contaminate per unit volume of water. Seeing ppm or mg/L on a lab report means the same thing.

that is all i have to say.

4 0

3 years ago

A chemist prepares a solution of zinc oxalate by measuring out of zinc oxalate into a volumetric flask and filling the flask to

anyanavicka [17]

<u>Answer:</u> The concentration of zinc oxalate is $1.7\times 10^{-11}M$

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}$

We are given:

Moles of zinc oxalate = $0.0075\mu mol=7.5\times 10^{-9}mol$ (Conversion factor: $1mol=10^{6}\mu mol$ )

Volume of solution = 450 mL

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{7.5\times 10^{-9}\times 1000}{450mL}\\\\\text{Molarity of solution}=1.66\times 10^{-11}M=1.7\times 10^{-11}M$

In case of multiplication and division, the number of significant digits is taken from the value which has least precise significant digits. Here, the least precise number of significant digits are 2.

Hence, the concentration of zinc oxalate is $1.7\times 10^{-11}M$

4 0

4 years ago

Which biome has leaves that change colors and fall off as winter approaches?

steposvetlana [31]

Answer:

Fall

Explanation:

Fall is before winter

3 0

4 years ago

Read 2 more answers

What precipitate forms when silver nitrate and potassium chromate solutions are mixed? Explain.

weeeeeb [17]

Answer: a. $Ag_2CrO_4( s)$

Explanation:

$2AgNO_3(aq)+K_2CrO_4(aq)\rightarrow Ag_2CrO_4(s)+2KNO_3(aq)$

When silver nitrate $AgNO_3$ combines with potassium chromate $K_2CrO_4(aq)$ ,they undergo double displacement reaction in which exchange of ions take place.

The products formed are silver chromate $Ag_2CrO_4$ which is insoluble in water and thus formed as precipitate and potassium nitrate $KNO_3(aq)$ is soluble in water.

3 0

4 years ago